Speedmaster PCE139.1007 2 Port Universal Billet Return Style Adjustable Fuel Pressure Regulator Black

The needle and seat assemblies that are installed in Speedmaster carburetors can sufficiently control fuel pressure up to about 8 psi. If the fuel pump is putting out more than 8 psi, a regulator should be used to keep the fuel pressure within safe limits and avoid the possibility of flooding. Speedmaster manufactures a number of regulators for most any need.